Is there a Coroneos 100 thing for proofs? (2 Viewers)

[tywebb]

Sydney Girls 2024 in resources

Q1, 3, 11c, 13e, 15b, 15d

so now 438

 

[tywebb]

north sydney boys 2024 in resources

Q1, 3, 11a, 12b, 13a, 13b, 14a, 14c

now 446

 

[tywebb]

in https://4unitmaths.com/2024-e2-5-papers.zip are the 2024 papers from barker, fort st, killara, north sydney girls and sydney grammar and here are the proof questions

barker: Q11d, 14a, 14b

killara: Q1, 2, 8, 12a, 12b, 13a, 13b, 14a, 16b

north sydney girls: Q9, 11e, 13c, 14c, 16a, 16b

sydney grammar: Q8, 10, 12e, 13d, 14b

notes:

1. barker q12 is missing, but you can guess from the solution what the question was and it wan't a proof question

2. fort st had lots of questions like show blah blah about vectors, complex numbers etc, which are technically proofs but won't be included here because they are in those topics, not the proof topic - but they didn't seem to have proof-topic-specific questions

so now we are up to 469

 

[kevinhuang31]

do you guys want me to compile all of them into one place on my website?

 

[tywebb]

normanhurst boys 2024 in resources section:

Q5, 15a, 15b, 15c

no now 473

 

[kevinhuang31]

hscquestions.com/subjects/4U/topics/proofs

135 proof questions and counting

 

[tywebb]

you reckon we can get to 500 (or maybe approx 495) by hsc? maybe if it is approx 495 and we get about 5 in hsc that will make 500 in 5 years.

 

[kevinhuang31]

yessir for sure

 

[kevinhuang31]

still a lot of unreleased trial papers

 

[Average Boreduser]

what the rizz

 

[tywebb]

here is a short video by Georg Pólya on maths and proofs, first guess then prove

and a longer one

 

[tywebb]

In this you can get the bos trials and if we restrict it just to 2020-2023 we see this: https://boredofstudies.org/resource...ension-2-2012-2023-exams-and-solutions.17485/

2020: Q8, 11e, 12d, 13b, 13c, 15b, 16b

2021: Q3, 9, 12d, 12e, 15b, 16b

2022: Q3, 11e, 12a, 14c, 15b, 16a

2023: Q13a, 13b, 15b

and the yet-to-be-released 2024: Q4, 12c, 16a, 16b, 16c

the 2024 Q16c is a proof of irrationality of π and follows Niven's 1947 proof published here:

Niven, Ivan (1947), "A simple proof that π is irrational", Bulletin of the American Mathematical Society, vol. 53, no. 6, p. 509

https://www.ams.org/journals/bull/1947-53-06/S0002-9904-1947-08821-2/S0002-9904-1947-08821-2.pdf

so now it is 500

 

[tywebb]

well i might be jumping the gun there, i am assuming the bos one will come out before the hsc, and then it will be 500

- or the hsc may come first with 5 proofs and then it will be 500

so lets say 495 for now

 

[tywebb]

or in the entwistle at https://www.entwistlemathematics.com.au/_files/ugd/870623_2fbb81ca4e124d218ba51b99dcdd1fc1.pdf

Q4, 7, 11d, 11e, 14b

so NOW 500

14c, 15b, 15c, 16b, 16c

so now 505

confused now?

 

[tywebb]

the bos ext 2 for 2024 has been released now here

so as i said before proof questions are Q4, 12c, 16a, 16b, 16c

so 510 now

 

[tywebb]

st george girls 2024 trial, and incomplete version of which is here: https://community.boredofstudies.org/threads/2024-trials.410168/post-7597823 nevertheless the proof questions are OK, except for the vincula in 15a, but it is easily fixed.

Q2, 5, 12d, 13b, 14b, 14d, 15a, 16b

so now 518

EDIT: better version is now in resources section

 

[tywebb]

sydney boys 2024 in resources section:

Q13b, 14b

so it is now 520

 

[tywebb]

from the ascham, blacktown boys and inaburra 2024 trials at https://4unitmaths.com/3-ext-2-trial-2024.zip

ascham:

Q3, 6, 11c, 11d, 13a, 14a, 14c, 15a

blacktown boys:

Q1, 12c, 12f, 14b, 14d, 14c, 16c

inaburra:

Q2, 12d, 13b, 14b, 15b, 15ci, 16c

so now 542

 

[tywebb]

from caringbah, hornsby girls, manly, penrith and sydney tech 2024 trials in this zip

caringbah Q6, 11c, 12d, 13d, 14e, 15b, 16d

hornsby girls Q3, 6, 11d, 12c, 14b, 16a

manly Q1, 6, 12d, 12e, 13a, 14c, 16c, 16d

penrith Q3, 11a, 12c, 13b, 14b, 15c

sydney tech Q7, 14b, 14d, 16c

now 573

 

[tywebb]

hunters hill 2024 from here

Q2, 12a, 12d, 13c, 15c

so now it is 578